At times, Mr. Gunn’s ambitions badly backfire. Like the first movie,
this one is jammed with action-driven sequences, some wildly bloated and
most of them cartoonish. For one fight, though, he cranks the music and
lets the screen bleed as the ostensible good guys kill one villain
after another, the casualties falling to the sound of a head-bobbing
song. Tonally, the episode feels unpleasantly sour and wrong for this
young series, which is best when it goes light; it’s a bummer watching
another director attempt the kind of smiling sadism that not even Martin
Scorsese and Quentin Tarantino can always pull off.